All-optical half-adder based on photonic mode junction

Abstract

We investigate the operation of all-optical multi-junction half-adder built upon photonic mode-orthogonal hetero-structures. Controlling the dielectric potential of multi-junctions (Ψe - Ψe-o - Ψo), the flow of photons from Ψe-o region can be abruptly manipulated to Ψe or Ψo region in selfinduced manner. With exceptional performance metrics, all-optical logic operations for half-adder are successfully derived with the bi-level dynamic mode-conversion across the junction. © 2011 AOS.